Changing Fuel Filter

[ray1933]

How many of you are draining the fuel then removing the filter VS removing the filter then draining the fuel from the cannister?

I have always drained the fuel then removed the filter, but I was reading in one of the Diesel magazines that the filter should be removed first then drain the fuel.

 

[roperteacher]

I followed the instructions given by members here on TDR and I have always drained the FUEL FIRST then opened up the lid, removed old filter, installed New one, Put the cap back on and primed and started the truck. .

 

[klenger]

I don't even bother to drain the fuel. I just change the filter. I'm not claiming this is the right way to do it, just the way I've done it.

 

[BarlowCummins]

I have done it both ways but most often I just pull the filter out and put a new one without drianing the fuel at all. I'm no expert but I don't think it makes any difference or atleast that is the way it seems.



Corey

 

[RDyson]

I always drain mine before changing. It just keeps me from making a mess.



Randy

 

[nickleinonen]

draining is a good idea. . i have not pulled a filter with the fuel not drained, but if the level is higher than the stand pipe in the housing, once the filter is pulled, unfiltered fuel will enter the stand pipe [clean side]

 

[WPeschel]

I don't even bother to drain the fuel. I just change the filter. I'm not claiming this is the right way to do it, just the way I've done it.

X2!!!!!!!!!!!!

 

[DrDiesel]

Drain it first. This keeps the mess under control as well as possible contamination. #@$%!

 

[dezeldog]

I always drain off a little fuel just to check for water. Then pull the filter and check the bottom of the canister for the 'crud'. W/crud I drain and clean the canister... . wo/crud just replace filter. It works for me.



Jim

 

[Joseph Donnelly]

See Nick's post. The fuel in the canister is the most contaminated anywhere, because the dirty side (meaning the entire can) has concentrated the stuff that the filter rejected. Once filtered, the fuel enters the stand pipe and goes to the engine. I drain the entire canister first, then unscrew the standpipe so I can get something in there to mop out any stuff in the bottom of the canister--carefully, so nothing gets into the center hole where the stand pipe goes. Be careful of the two prongs of the water-in-fuel sensor so you don't bend them or catch a cloth on them.

 

[CCamillo]

I always drain the fuel fist then unscrew the cap and change the filter. Then I fill it about 1/2 way with Sea Foam. A body of mine recomended it and it says it on the can. Pour the rest in the tank, prim the system and fire it up.

 

[staarma]

draining is a good idea. . i have not pulled a filter with the fuel not drained, but if the level is higher than the stand pipe in the housing, once the filter is pulled, unfiltered fuel will enter the stand pipe [clean side]

Ditto here. If you have ever looked in there after removeing the filter you will see that you don't want that stuff going directly to the CP3 or injectors.

 

[AHolt]

I just did mine. Drained fuel changed filter.

 

[mr.wilson]

What is Sea Foam???

 

[fkovalski]

Sea Foam is a decorbon- izing additive. It should not be used as the ingredients are not compatible with our fuel systems.



sea foam

 

[PWitteveen]

Sea Foam is a decorbonizing additive. It should not be used as the ingredients are not compatible with our fuel systems.

fkovalski,



Where do you see that it isn't compatable with our fuel systems? I looked on the link you provided and it lists diesel applications.



Thanks,



pwitteveen

 

[roperteacher]

I was going to use the SEAFOAM on my next Fuel filter change. . I have heard nothing but great results on this site about it. What makes it not compatible?? I read several posts where trucks were running rough and a bad injector was suspected and it cleared it right up. Please advise...

 

[msperos]

My understanding from past posts is that it has alcohol in it. The alcohol is not spelled out by name but it is in there. My understanding is that new fuel systems do not like alcohol and with the new ulsd it is even worse. I'll see if I can find the postand put a link.

 

[msperos]

www.turbodieselregister.com/forums/showthread.php?t=165071&highlight=seafoam



Here is one link

 

[Grizzly]

See Nick's post. The fuel in the canister is the most contaminated anywhere, because the dirty side (meaning the entire can) has concentrated the stuff that the filter rejected. Once filtered, the fuel enters the stand pipe and goes to the engine. I drain the entire canister first, then unscrew the standpipe so I can get something in there to mop out any stuff in the bottom of the canister--carefully, so nothing gets into the center hole where the stand pipe goes. Be careful of the two prongs of the water-in-fuel sensor so you don't bend them or catch a cloth on them.

I have to go with Joe's recommendation. It sound like the safest method.